HTML Entity for Greek Koronis (U+0343)

Intermediate
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0343
HTML entity for Greek Koronis combining mark (U+0343) — hex, decimal, and CSS tutorial

What You'll Learn

How to insert the combining Greek Koronis (U+0343) in HTML using hexadecimal, decimal, and CSS escape methods. This mark is U+0343 (COMBINING GREEK KORONIS) in the Combining Diacritical Marks block (U+0300–U+036F). It denotes smooth breathing (ψιλή, psili)—the koronis indicates that a word-initial vowel has no /h/ sound.

Place it after a base Greek letter (e.g. ἀ for alpha with koronis). Use ̓, ̓, or CSS \0343. There is no named HTML entity. Scholarly text often uses precomposed letters (e.g. ἀ U+1F00); combining U+0343 is still useful for dynamic or decomposed Greek markup.

⚡ Quick Reference — Greek Koronis

Unicode U+0343

Combining Diacritical Marks

Hex Code ̓

Hexadecimal reference

HTML Code ̓

Decimal reference

Named Entity —

Use numeric codes only

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0343
Hex code       ̓
HTML code      ̓
Named entity   (none)
CSS code       \0343
Meaning        Smooth breathing (psili)
Position       Above base Greek vowel
Example        ἀ (alpha + mark)
1

Complete HTML Example

This example shows the Greek Koronis (U+0343) with alpha (α) and epsilon (ε) using hexadecimal code, decimal HTML code, and a CSS content escape. Always place the combining mark after the base letter:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\0343";
  }
 </style>
</head>
<body>
<p>Koronis using Hexadecimal: &#x03B1;&#x0343; &#x03B5;&#x0343;</p>
<p>Koronis using Decimal: &#x03B1;&#835; &#x03B5;&#835;</p>
<p id="point">Koronis using CSS Entity: &#x03B1;</p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The Greek Koronis (U+0343) renders when fonts support Greek and Combining Diacritical Marks stacking:

Chrome 1+
Firefox 1+
Safari 1+
Edge 12+
Opera 4+
Android 4.4+
iOS Safari 1+

👀 Live Preview

Greek Koronis (U+0343) on vowels, compared with precomposed smooth and rough breathing:

α + U+0343 (hex) ἀ
ε + U+0343 (decimal) ἐ
Precomposed smooth (ἀ) ἀ
Rough breathing (ἁ) ἁ
Mark alone ̓
Numeric refs &#x0343; &#835; \0343

🧠 How It Works

1

Hexadecimal Code

&#x0343; uses Unicode hexadecimal 0343. Place it after the base Greek letter (e.g. &#x03B1;&#x0343;) so the koronis stacks above as smooth breathing.

HTML markup
2

Decimal HTML Code

&#835; uses decimal Unicode value 835 for the same combining character.

HTML markup
3

CSS Entity

\0343 is used in CSS, typically in the content property of ::after on an element that already contains the base letter.

CSS stylesheet
=

Smooth breathing above the vowel

U+0343 is the combining koronis (psili). Order in HTML: base letter, then combining mark. Next: Greek Perispomeni (U+0342).

✅

Use Cases

The Greek Koronis (U+0343) is commonly used in:

📜 Polytonic Greek

Classical and Koine Greek with smooth breathing on word-initial vowels (ἀ, ἐ, ἠ).

📖 Classics & Homer

Ancient Greek editions, poetry, and texts that preserve breathing marks.

🎓 Linguistics

Philology, historical linguistics, and orthography referencing Greek breathing.

📖 Religious texts

Liturgical and scriptural Greek in polytonic form.

📚 Language learning

Courses teaching pronunciation and the difference between psili and dasia.

🌐 Multilingual sites

Web apps that build or display decomposed Greek diacritic sequences.

💡 Best Practices

Do

  • Place U+0343 after the base Greek vowel in markup
  • Use Greek-capable fonts (e.g. GFS Didot, Palatino, system Greek fonts)
  • Declare UTF-8 with <meta charset="utf-8">
  • Use precomposed letters (ἀ U+1F00) when NFC is preferred for publishing
  • Distinguish smooth breathing (psili) from rough breathing (dasia, e.g. ἁ)

Don’t

  • Put the combining mark before the base letter
  • Confuse U+0343 (koronis) with U+0342 (perispomeni, circumflex)
  • Expect a named HTML entity for U+0343
  • Use CSS \0343 in HTML text nodes
  • Apply smooth breathing where rough breathing (ἁ) is required

Key Takeaways

1

Two HTML numeric references plus CSS insert U+0343

&#x0343; &#835;
2

For CSS, use \0343 in content after the base letter in the element

3

Unicode U+0343 — COMBINING GREEK KORONIS (smooth breathing)

4

Example sequence: &#x03B1;&#x0343; or precomposed &#x1F00; (ἀ)

5

Next: Greek Perispomeni (U+0342)

❓ Frequently Asked Questions

Use &#x0343; (hex), &#835; (decimal), or \0343 in CSS content. There is no named entity. Place the code after a base Greek letter (e.g. &#x03B1;&#x0343;) so smooth breathing appears above it.
U+0343 (COMBINING GREEK KORONIS). Combining Diacritical Marks block. Hex 0343, decimal 835. It represents smooth breathing (psili) above a Greek vowel.
In Greek polytonic orthography, classical and Koine Greek, linguistics, religious Greek content, language learning, and anywhere you need smooth breathing on vowels (e.g. ἀ, ἠ).
HTML references (&#835; or &#x0343;) go in markup after the base letter. The CSS escape \0343 is used in stylesheets, typically on ::after when the base letter is already in the element.
The koronis (κορωνίς) or smooth breathing (ψιλή) marks the absence of initial /h/ on a vowel. Rough breathing (dasia) marks presence of /h/ (e.g. ἀ vs ἁ). U+0343 is the combining koronis; many editions use precomposed letters like ἀ (U+1F00).

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

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Greek Dialytika Tonos (U+0344) Greek Perispomeni (U+0342)